Sick Man films himself gunning down TV reporters and posts it online

After he shot two journalists on live TV and before he shot himself, Bryce Williams sent a message: "I've been a human powder keg for a while....just waiting to go BOOM."

Those were the words the gunman wrote in a chilling fax to ABC News, according to the network. The document purportedly from the Virginia shooter came after he gunned down WDBJ-TV journalists Alison Parker and Adam Ward, spurring a manhunt that ended when he turned a gun on himself as troopers closed in.

Shocking morning broadcast

Reporter Alison Parker, 24, and cameraman Adam Ward, 27, were broadcasting a live interview with an official from the local chamber of commerce when there was the sudden sound of gunfire and screams. The camera tumbled to the ground, and producers at the local WDBJ7 news station cut off the broadcast, switching to a shocked-looking anchor in the studio.

It later emerged that both Parker and Ward died at the scene. The gunman also shot their interviewee, Vicki Gardner, the executive director of the Smith Mountain Lake regional chamber of commerce. Gardner survived and is in stable condition after surgery.

Two videos posted on a Twitter account under the name Bryce Williams show someone walking up to the WDBJ news crew and pointing a gun at them. Another tweet said, "I filmed the shooting." The Facebook and Twitter account were suspended shortly after the tweets.

What was the shooter angry about?

In a 23-page 'manifesto' sent to ABC News around two hours after the shooting it was revealed how he had used the rambling 'suicide note' to claim the attack was revenge for racist killings carried out by Dylann Roof at a Charlestown church in June.

More details are now emerging about the document - in which he claims he was 'proud' to have made 'thousands' as a male escort and was angry at the "tough times he'd had to endure. The horrifying video made by the shooter shows the pistol being aimed at Ms Parker as she conducted her interview, oblivious to what is about to happen. The footage showed the weapon blasting away at her before she turned and ran screaming. Truely shocking!